Base | Representation |
---|---|
bin | 1111101001111… |
… | …01101110101001 |
3 | 100011002222211000 |
4 | 13310331232221 |
5 | 232104343331 |
6 | 21010425213 |
7 | 3153146154 |
oct | 764755651 |
9 | 304088730 |
10 | 131324841 |
11 | 6814732a |
12 | 37b92209 |
13 | 2129080b |
14 | 13626c9b |
15 | b7e10e6 |
hex | 7d3dba9 |
131324841 has 16 divisors (see below), whose sum is σ = 196902720. Its totient is φ = 86493600.
The previous prime is 131324839. The next prime is 131324849. The reversal of 131324841 is 148423131.
It is not a de Polignac number, because 131324841 - 21 = 131324839 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (131324849) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27060 + ... + 31541.
It is an arithmetic number, because the mean of its divisors is an integer number (12306420).
Almost surely, 2131324841 is an apocalyptic number.
It is an amenable number.
131324841 is a deficient number, since it is larger than the sum of its proper divisors (65577879).
131324841 is an equidigital number, since it uses as much as digits as its factorization.
131324841 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58693 (or 58687 counting only the distinct ones).
The product of its digits is 2304, while the sum is 27.
The square root of 131324841 is about 11459.7051009177. The cubic root of 131324841 is about 508.2947544911.
Adding to 131324841 its reverse (148423131), we get a palindrome (279747972).
The spelling of 131324841 in words is "one hundred thirty-one million, three hundred twenty-four thousand, eight hundred forty-one".
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